Medium dispenser

Abstract

For discharging a medium, such as a powder, a film/foil seal ( 16 ) of a reservoir chamber ( 24 ) is pierced by a tool ( 40 ) in a first axial movement, after which the medium is suctioned via an orifice ( 9 ) in feeding a delivery flow via passageways ( 55 ) from the chamber ( 24 ). On completion of a return stroke and twisting the tool ( 40 ) relative to the reservoir body ( 6 ) a further chamber ( 24 ) may be emptied in the same way, thus enabling e.g. a pharmaceutical active substance to be administered in two individual doses as expedient for nasal treatment.

What is claimed is:  
     
       1. A dispenser having two bodies which are rotatable relative to one another, one of said bodies, being a base body, comprising a discharge nozzle having a piercing element which has an inlet and outlet for a medium to be inhaled through the nozzle and another of said bodies, being a reservoir body, comprising multiple sealed reservoirs for containing the medicament which when pierced by the piercing element the medium will flow from the inlet of the piercing element to the outlet and out an orifice. 
     
     
       2. The dispenser according to  claim 1 , wherein said reservoirs comprise a reservoir being concavely bounded by a reservoir cup, and wherein an outlet shell bounds said outlet. 
     
     
       3. The dispenser according to  claim 2 , wherein said reservoir chamber is bounded by a substantially wherein said reservoir chamber is bounded by a substantially hemispherical cup bottom. 
     
     
       4. The dispenser according to  claim 1 , wherein while extracting the medium said reservoir bounds a substantially annular inlet opening for passing inlet flow into said reservoir. 
     
     
       5. The dispenser according to  claim 4 , wherein said outlet is located inside the piercing element, said reservoir being bounded by a cup bottom opposing a cup aperture, and an annular duct connecting said cup aperture with said cup bottom, said annular duct being coaxial with said inlet of said piercing element. 
     
     
       6. The dispenser according to  claim 1 , wherein said reservoir is bounded by a cup wall and a reservoir closure including a closure wall thinner than said cup wall, said closure wall being bonded to a cup rim and hermetically sealing said reservoir while being releasable only by being destroyed, said reservoir closure being substantially planar. 
     
     
       7. The dispenser according to  claim 1 , wherein actuating means are included for opening said reservoir by a manual actuating motion. 
     
     
       8. The dispenser according to  claim 1 , and further including abutment means, wherein while discharging the medium said outlet is positively locked relative to said reservoir by said abutment means while simultaneously an inclined face engages a recess of said reservoir containing body. 
     
     
       9. The dispenser according to  claim 1 , wherein said outlet is surrounded by longitudinal ribs circumferentially subdividing said reservoir and including front edges which substantially connect to said reservoir body when manually actuating said dispenser. 
     
     
       10. The dispenser according to  claim 1 , wherein a piercing element is included for opening said reservoir, said piercing element being located in the vicinity of said inlet and covering said outlet when viewed in axial view, for opening said reservoir said piercing element substantially exclusively slitting said reservoir body, ports of said inlet being inclined relative to an axis of said reservoir. 
     
     
       11. The dispenser according to  claim 1 , wherein said base body includes said piercing element including a plunger and said inlet, while discharging the medium said plunger extending inside said reservoir and being spaced from a cup bottom of said reservoir, wherein passageways extend within said reservoir from a constriction into a widened section adjoining said cup bottom. 
     
     
       12. The dispenser according to  claim 11 , wherein said piercing element and said reservoir commonly provide a mixing and swirl chamber for a delivery flow radially inwardly deflected in said reservoir over an angle of substantially 180° into said outlet. 
     
     
       13. The dispenser according to  claim 1 , wherein said reservoir is bounded by a reservoir cup supported substantially exclusively circumferentially by said base body and including a cup aperture, said reservoir cup including a rim enveloping said cup aperture. 
     
     
       14. The dispenser according to  claim 13 , wherein said reservoir cup includes a cup shell and said reservoir body includes a support body, said cup shell eccentrically connecting to said support body substantially in one part. 
     
     
       15. The dispenser according to  claim 1 , wherein said at least one base body includes a first base body and a second base body manually displaceable relative to said first base body, said first base body supporting said reservoir and said second base body including said outlet, while discharging the medium said first and second base bodies being interconnected substantially exclusively via said reservoir body. 
     
     
       16. The dispenser according to  claim 15 , wherein said reservoir body is mounted on said second base body directly adjacent to said reservoir via a telescopic mount, while discharging the medium said reservoir body being located substantially entirely within at least one of said first and second base bodies and radially adjacent to said telescopic mount. 
     
     
       17. The dispenser according to  claim 1 , wherein control means are included for manually overcoming a pressure resistance while initially actuating said dispenser. 
     
     
       18. The dispenser according to  claim 17 , wherein said at least one base body includes first and second base bodies, said control means including means for locking said second base body relative to said first base body in an initial position, said control means including a rated rupture connection interconnecting said first and second base bodies, a captive lock being included for preventing said second base body from being withdrawn from said first base body. 
     
     
       19. The dispenser according to  claim 1 , wherein said reservoir body includes a plurality of individual reservoirs each of said individual reservoirs, being individually connectable to said outlet. 
     
     
       20. The dispenser according to  claim 1 , wherein said base body includes a first base body and a second base body manually axially and rotatably displaceable relative to said first base body, an arbor being included and rotatably engaging said reservoir body. 
     
     
       21. The dispenser according to  claim 1 , wherein said base body is a cap and includes a cap shell prevented from rotating relative to said reservoir body by rotation prevention means, at least while discharging the medium said rotation prevention means being located in the vicinity of said cap shell. 
     
     
       22. The dispenser according to  claim 21 , wherein said rotation prevention means include a positioning member located on an outer circumference of said reservoir body and on an inner circumference of said cap shell, said rotation prevention means including means for axially slidingly displacing said cap shell relative to said reservoir body. 
     
     
       23. The dispenser according to  claim 1 , wherein said base body includes said outlet duct and a discharge nozzle, said discharge nozzle including a free end traversed by said medium outlet said discharge nozzle including first and second shells commonly bounding said medium outlet, said first shell being nested inside said second shell and radially spaced from said second shell, said first shell defining a length extension different from a length extension of said second shell, said first shell freely protruding into said base body. 
     
     
       24. The dispenser according to  claim 1 , wherein said reservoir body and base body include peripheral faces located outside of said at least one reservoir, passageways being bounded by said peripheral faces. 
     
     
       25. The dispenser according to  claim 24 , wherein said base body includes a cup end wall including an inner face, said reservoir body including an end face opposing said inner face, said end face and said inner face commonly bounding said passageways. 
     
     
       26. The dispenser according to  claim 24 , wherein said base body includes a first cap shell, and a second cap shell enveloping said first cap shell, said passageways ending upstream in an inlet and suction opening substantially circumferentially bounded by at least one of said first and second cap shells. 
     
     
       27. A dispenser according to  claim 1 , wherein said base body being rotatable around an axis of rotation, said sealed reservoirs being disposable near said piercing element by rotation and then pierced by movement of said base body in direction of said axis.